Discovery of novel halogenated 8‐hydroxyquinoline‐based anti‐MRSA agents: In vitro and QSAR studies

Autor: Nujarin Sinthupoom, Ratana Lawung, Virapong Prachayasittikul, Somsak Ruchirawat, Srisurang Tantimavanich, Rungrot Cherdtrakulkiat, Supaluk Prachayasittikul, Apilak Worachartcheewan
Rok vydání: 2019
Předmět:
Zdroj: Drug Development Research. 81:127-135
ISSN: 1098-2299
0272-4391
DOI: 10.1002/ddr.21611
Popis: Methicillin-resistant Staphylococcus aureus (MRSA) infection has been considered to be one of global health problems due to limited classes of effective antimicrobial drugs. Herein, 8-hydroxyquinoline (8HQ) and its derivatives (1-7) were investigated for their anti-MRSA and antioxidant activities. Cloxyquin (2), a halogenated 8HQ, exerted the highest antimicrobial activity (MIC50 ≤ 5.57 μM) with high safety index, whereas an amino-derivative 7 showed the strongest antioxidant activity. Additionally, quantitative structure-activity relationship (QSAR) study demonstrated that mass, polarizability, topological charge, and van der Waals volume are essential properties governing the anti-MRSA activity. Taken together, cloxyquin was highlighted as a promising compound for further development as a novel anti-MRSA agent. QSAR findings would also benefit for further rational design of novel 8HQ-based compounds to combat the MRSA resistance.
Databáze: OpenAIRE